php-java-bridge-users

[Php-java-bridge-users] can Java objects persist between requests?

[Andreas K. <ako...@we...>]

Hi!

Is it possible to make objects created in Java to persist between HTTP 
Requests?

I'd like to create an object once, and than store it in shared memory, 
perhaps using apc_store() and apc_fetch().

something like:

if (!apc_fetch('java_obj')) {
  $java_obj = new java('package.object');
  $java_obj->doSomeExpensiveCalculation();
  apc_store('java_obj', $java_obj);
}
else {
  $java_obj = apc_fetch('java_obj');
}

Is there any reason not to do something like that?

As far as I understand the php-java-bridge, the Java objects completely 
live in PHP (ZendEngine) when created, so I don't see a reason why this 
should not work.
The JVM is only used to create the object, and php-java-bridge creates 
"real" PHP objects out of it, right? Or does php-java-bridge forward all 
methode calls... to the JVM at runtime?

Please correct me if I'm wrong!

Or do you know about a better alternative to make an Java object persist 
between requests?

best regards
Andreas

Ant: [Php-java-bridge-users] can Java objects persist between requests?

[Jost B. <jos...@ya...>]

Hi,


> Is it possible to make objects created in Java to
> persist between HTTP Requests?

You can use:

session_start();
if(!$_SESSION['v']) 
  $_SESSION['v']=new java(...);

...

The above is syntactic shugar for:

if(!java_session("PHPSESSION")->get('v'))
 java_session("PHPSESSION")->put('v', new java(...));

If you want to share your session vars with .jsp,
please use java_session() instead.

Please see http://php-java-bridge.sourceforge.net/ and
the ISession documentation for details.


 
> I'd like to create an object once, and than store it
> in shared memory, perhaps using apc_store() and 
> apc_fetch().

If the object implements java.io.Serializable that
would be another option, yes.  But instead of storing
the information on the client side I would obtain a
session store from the server and rely on the backend
to do session replication.


Regards,
Jost Boekemeier



	

	
		
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